body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 0;
}
.header {
    width: 100%;
    height:200px;
}

#hi1 {
    width:100%;
    height:320px;
}
.dh >ul{
    height: 50px;
    width: 100%;
    margin-bottom: 20px;
    padding: 0px;
    margin-top: 100px;
    display: inline-flex;
    background-color: forestgreen;
}
.dh >ul> li{
    height: 30px;
    width: 100%;
    display:inline-block;
    list-style: none;
    font-size: 0.9em;
}
.dh ul li a{
    text-align: center;
    color: #EEEEEE;
    font-size: larger;
    font-family: 楷体;
    width: 100%;
    margin: 0px;
    text-decoration: none;
    display: block;
    background-color: forestgreen ;
    line-height: 50px;
    border-bottom: 0px solid rgb(168,164,172);
}
.dh ul li a:hover{
    color: #FFD700;
    background-color: chartreuse;
    border-bottom:3px solid darkolivegreen;
}
.dh ul li ul{
    list-style: none;
    display: flex;
    position: absolute;

}

.container {
    max-width: 1000px;
    margin: 20px auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
	height: 1200px;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 15px;
    text-align: center;
    border-radius: 8px 8px 0 0;
	width: 1000px;
}

.chat-box {
    padding: 15px;
    max-height: 900px;
    overflow-y: auto;
	width: 1000px;
	
}

.message {
    display: flex;
    margin-bottom: 15px;
}

.avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 10px;
}

.message-content {
    padding: 10px;
    border-radius: 5px;
}

.from-user .message-content {
    background-color: #e1f5fe;
}

.from-expert .message-content {
    background-color: #ffe0b2;
}

.buttons {
    padding: 15px;
    display: flex;
    justify-content: space-between;
}

.favorite-btn, .follow-btn {
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.favorite-btn {
    background-color: #ff9800;
    color: white;
}

.follow-btn {
    background-color: #4CAF50;
    color: white;
}
a:hover{
	color:lightgreen;
	}
a{
	text-decoration: none;
	color: black;
}
footer {
    text-align: center;
    padding: 15px;
    background-color: #4CAF50;
    color: white;
	position: absolute;
	top: 1900px;
	width: 100%;
}
.input{
	margin-top: 10px;
	width: 1000px;
}
.input input{
	width: 990px;
	height: 30px;
}